2003 add-in in Custom form

  • Thread starter Thread starter GSK
  • Start date Start date
G

GSK

I have created a outlook 2003 add in VS 2005. I am referencing the add-in in
a custom outlook form. I am not able to call the Test method from the from,
am getting the error "object required". Pls find the code below. Kindly help
me in identifiying this issue.
--------------------------------------------------------------------------------------
Add-in Code :
namespace OutlookTest
{
public partial class ThisAddIn
{
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
}
private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
{
}
public void Test(string Name)
{
MessageBox.Show(Name);
}
}
------------------------------------------------------------------------------------------
Custom form code
Function Item_Open()
Set myObj = Application.COMAddIns.Item("OutlookTest")
myObj.Connect = True
Set oCOMAddinObj = GetObject("","OutlookTest")
oCOMAddinObj.Test("Add-in call") /--Getting error in this line..
End Function
------------------------------------------------------------------------------------------
 
There's a lot more you need to do in a VSTO addin to make your addin code
available to outside calls. You need to override
RequestComAddInAutomationService() and provide a dual interface ComVisible
class, among other things.

You need something like this in your ThisAddIn class

private AddinUtilities addinUtilities;

protected override object RequestComAddInAutomationService()
{
if (addinUtilities == null)
{
addinUtilities = new AddinUtilities();
}
return addinUtilities;
}
}

[ComVisible(true)]
[InterfaceType(ComInterfaceType.InterfaceIsDual)]
public interface IAddinUtilities
{
void CalledFromOutside();
}

[ComVisible(true)]
[ClassInterface(ClassInterfaceType.None)]
public class AddinUtilities : IAddinUtilities
{
// Demonstrates a method that can be called from outside the addin.
// This technique can be used to call functions and to read/write
properties.
public void CalledFromOutside()
{
MessageBox.Show("This is a test of an outside call to the COM
addin");
}
}
:
Then your calling code has to be specially formatted:

Dim oAddin

Set oAddin = Application.COMAddins.Item("myAddinProgID") ' myAddinProgID is
the ProgID of the addin
If Not (oAddin Is Nothing) Then
oAddin.Object.CalledFromOutside 'this calls the addin procedure
End If
 
Thanks very much Ken. It worked now after the changes.

Ken Slovak - said:
There's a lot more you need to do in a VSTO addin to make your addin code
available to outside calls. You need to override
RequestComAddInAutomationService() and provide a dual interface ComVisible
class, among other things.

You need something like this in your ThisAddIn class

private AddinUtilities addinUtilities;

protected override object RequestComAddInAutomationService()
{
if (addinUtilities == null)
{
addinUtilities = new AddinUtilities();
}
return addinUtilities;
}
}

[ComVisible(true)]
[InterfaceType(ComInterfaceType.InterfaceIsDual)]
public interface IAddinUtilities
{
void CalledFromOutside();
}

[ComVisible(true)]
[ClassInterface(ClassInterfaceType.None)]
public class AddinUtilities : IAddinUtilities
{
// Demonstrates a method that can be called from outside the addin.
// This technique can be used to call functions and to read/write
properties.
public void CalledFromOutside()
{
MessageBox.Show("This is a test of an outside call to the COM
addin");
}
}
:
Then your calling code has to be specially formatted:

Dim oAddin

Set oAddin = Application.COMAddins.Item("myAddinProgID") ' myAddinProgID is
the ProgID of the addin
If Not (oAddin Is Nothing) Then
oAddin.Object.CalledFromOutside 'this calls the addin procedure
End If




GSK said:
I have created a outlook 2003 add in VS 2005. I am referencing the add-in
in
a custom outlook form. I am not able to call the Test method from the
from,
am getting the error "object required". Pls find the code below. Kindly
help
me in identifiying this issue.
--------------------------------------------------------------------------------------
Add-in Code :
namespace OutlookTest
{
public partial class ThisAddIn
{
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
}
private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
{
}
public void Test(string Name)
{
MessageBox.Show(Name);
}
}
------------------------------------------------------------------------------------------
Custom form code
Function Item_Open()
Set myObj = Application.COMAddIns.Item("OutlookTest")
myObj.Connect = True
Set oCOMAddinObj = GetObject("","OutlookTest")
oCOMAddinObj.Test("Add-in call") /--Getting error in this line..
End Function
------------------------------------------------------------------------------------------
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